1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee2f6057a1c4efdb2f498ec983eb953f62dec2e7d3e374a11110f5595865423. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56424b1d-2d14-4c4a-b403-941bd653084d.json and https://artists.proofprofile.net/proofs/artist/56424b1d-2d14-4c4a-b403-941bd653084d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd596168bc4f089c95ea771fa629fd5031af23970b2ab145fe2b384356e5260c8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE871936094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5127ab53e8ebe795b4535d0e9ee515f98ad14b7695ff37580964efb91b0cd77. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA240304716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cbbf22634b225c876009f80646009a7522c1edf3a92356a66843eefa43e5f1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA240300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188751df454c56b56346ea0ea64cb978ab1ee8dbdf186e1f5c2291590b7f408d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA249700078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2346ce525f6b8c564a543d29ffbc8ea3422c0732e5be6832173c6ea72ad145. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af6d063043ed10e26b28ff4a585515536ab14ba95be7bc49e1f0df937cfcd87. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67058d8b2f76be349875de409302e832902cd04461dff5ddc0b8169ef397bfe9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7252e434efe3c5200004c89810f523b3e107bd40c4e4c7463e5315ace9d8bb0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa316a55a95ab85a35de0fa584242dd9dbea8e5958dc7414f9bc296373b46c041. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36da0ff26a1a5f90de36a823642e04d087f968cf3a7586563b72568a39479cc9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6720d149a5e0f706cbe064b9797c950d879162522c99e8c34fc31b8662805974. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7969597c3fe358dbdb0feb435d2a39cfddaaf1fa2b6e08a3c6b04c32db34be1d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:12:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262b222297a03010c2a25141a012c0826c02fd3c75ee68a32a8a75586238ca10. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC960001611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c1d03d286e9e3948d5d98122ad5b3c72126a83f2b2427b209a747ece2b9883. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE871192001.
(Wie heeft mij naar huis gebracht) VANNACHT
Dans Je De Hele Nacht Met Mij (Dr. Rude Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bace0cb81399bf2266da2129a34c7461b3fd2d25f7a74bc3c28293accef5a9c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL7F92500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188751df454c56b56346ea0ea64cb978ab1ee8dbdf186e1f5c2291590b7f408d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA249700078.
Dans Je De Hele Nacht Met Mij - Dr. Rude Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23ace80e128ec308cbf8049757ff837fca09553fa582e9256652efdc8ecc6af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA242100315.